In residential areas where the speed limit is not posted, what is the common speed?

• A. 25 mph
• B. 15 mph
• C. 35 mph
• D. 55 mph

Answer: (A)

When there’s no speed limit posted in residential areas, the standard default is 25 mph. This pace helps drivers react to pedestrians, children, and parked cars and keeps stopping distances reasonable in blocks where people frequently share the road. It’s slow enough to make neighborhoods safer but fast enough to keep traffic moving.

Other speeds don’t fit the typical residential default: 15 mph would be for special zones like near schools or playgrounds or during certain times, not as the general rule. 35 mph is more common on busier streets or arterials, and 55 mph is used on highways, not residential streets. If a sign sets a different limit, you should follow that posted limit.